The number of molecules in a container is quadrupled and the Kelvin temperature quadrupled. The volume remains unchanged. The new pressure will be how many times greater than the original pressure?
a. 16
b. 1
c. 20
d. 32
a
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What is the shape of the segmented mirrors of twin Keck Observatory telescopes, Gran Telescopio Canarias, and soon to be launched James Web Space Telescope?
a. spherical b. hexagonal c. rectangular d. triangular e. octagonal
A star both twice the diameter and twice the temperature of our Sun would be ________ times more luminous than our Sun; in fact, Vega fits this description well
Fill in the blank(s) with correct word
What is the minimum thickness of a soap bubble film with refractive index 1.38 that results in a constructive interference in the reflected light if this film is illuminated by a beam of light of wavelength 610 nm?
A) 444 nm B) 222 nm C) 555 nm D) 333 nm E) 111 nm
Dielectrics: A parallel-plate capacitor with plate separation of 4.0 cm has a plate area of 6.0 × 10-2 m2.What is the capacitance of this capacitor if a dielectric material with a dielectric constant of 2.4 is placed between the plates, completely filling the space? (?0 = 8.85 × 10-12 C2/N ? m2)
A. 3.7 × 10-12 F B. 3.7 × 10-14 F C. 16 × 10-14 F D. 32 × 10-14 F E. 32 × 10-12 F